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Latest and Most Accurate Cisco 400-351 Dumps Exam Questions and Answers:

Version: 15.0
Question: 21

Refer to the exhibit. You have been asked to troubleshoot why VTP is not distributing new VLANs to a VTP client switch. Which option is the most likely root cause of this VTP problem.

A. The VTP password is not set to level 15 on the client switch.
B. The VTP password encryption level is not set on the client switch.
C. The VTP encryption level does not match on the client switch.
D. The VTP password is incorrect on the client switch.
E. The client switch is set to transparent mode. Which ignores VLAN configuration updates from VTP servers.

Answer: D

Explanation:
From:
Each sw, and issue the command:
No vtp password

Configuring VTP on Cisco Switches

Random Fun Tip On VTP

Question: 22

Which of the below characteristics of RPL is true?

A. RPL is designed 1)or lossy networks.
B. RPL is an IPv6 link-state routing protocol.
C. RPL can send only messages in secured mode.
D. RPL uses hello messages to send routing updates to its neighbors.

Answer: A

Explanation:
From:
http://www.openmote.com/standards/ietf-rpl.html
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/rpl/configuration/15-mt/rpl-15-mt-book.html
https://datatracker.ietf.org/doc/rfc6550/?include_text=1

Question: 23

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You are getting the following error message. Which reason for this issue true?
%DOT11-4-CANT_ASSOC Interface Dot 11 Radio0. Cannot associate NO Aironet Extension IE.

A. “dot11 extension ” is missing under the interface Dot11Radio 0 interface.
B. When repeater mode is used, unicast-flooding must be enabled to allow Aironet IE communications.
C. The parent AP MAC address has not been defined.
D. Repeater mode only works between Cisco access point.

Answer: A

Explanation:

http://www.cisco.com/c/en/us/td/docs/wireless/access_point/12-2_11_JA/configuration/guide/b12211sc/s11rep.html

Question: 24

You have received a new Cisco 5760 Controller and have gone through the initial startup wizard. You are now trying to add APs to the controller, but these are not joining.
Which three checks should you do next? (Choose three.)

A. Check that the radios are not in a shutdown state.
B. Check the country code of the controller. The APs do not join the controller if the country code does not match.
C. Check that the correct time is set on the controller.
D. Check that option 53 has been set in the DHCP scope.
E. Check that the controller has enough AP licenses.
F. Check that the controller has been configured with the correct hostname. Otherwise, DNS resolution fails.

Answer: BCE

Explanation:

Question: 25

You are installing Converged Access controllers that run Cisco IOS-XE and you are ready to implement QoS. From the below, choose all the possible QoS target levels that would apply to downstream traffic (toward the client)?

A. Client, SSID, Radio, Port
B. Client, SSID, Radio
C. Client, Radio
D. Client, SSID

Answer: A

Explanation:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3.2_0_se/multibook/configuration_guide/b_consolidated_config_guide_3850_chapter_010010.html

Question: 26

Which memchanism incorporates the channel capacity into the CAC determination and gives a much more accurate assessment of the current call carrying capacity of the AP?

A. Static CAC.
B. Reserved roaming bandwidth(%).
C. Expedited bandwidth.
D. Metrics collection.
E. Load-based AC.
F. Max RF bandwidth (%).
G. Admission control.

Answer: E